辅助产生DAO类的工具

				set destDir=output
				set input=tableDef.txt
				set tableName=business_order
				set mappingFile=DBTypeMapping.properties
				set class=Order
				set package=com.company.project
				
				java -jar ..\lib\dao4j-dev-1.00.jar -d %destDir% --in %input% --tableName %tableName% --mapping %mappingFile% --class %class% --package %package%